Оксидні матеріали електронної техніки – отримання, властивості, застосування.
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Item Optical Investigation of Co Ions Diffusion in Gd3Ga5O12 Single Crystals(2017-05-29) Sugak, D.; Syvorotka, I. I.; Yakhnevych, U.; Buryy, O.; Zhydachevskii, Ya.; Suchocki, A.; Vakiv, M.; Ubizskii, S.; Lviv Polytechnic National University, Ukraine; Scientific Research Company “Carat”, Lviv, Ukraine; Institute of Physics, Polish Academy of Science, Warsaw, Poland; Institute of Physics, Kazimierz Wielki University, Bydgoszcz, PolandItem Optical Investigation of the Cu-Ions Diffusion into Lithium Niobate Crystal(2017-05-29) Yakhnevych, U.; Sugak, D.; Syvorotka, I. I.; Buryy, O.; Martynyuk, N.; Ubizskii, S.; Lviv Polytechnic National University, Lviv, Ukraine; Scientific Research Company “Carat”, Lviv, UkraineItem The heat generation processes in Q-switched YAG:Nd/YAG:Cr microchip laser and their influence on the parameters of laser radiation(Видавництво Львівської політехніки, 2012) Buryy, O.; Ubizskii, S.The heat generation processes are considered for passively Q-switched YAG:Nd/YAG:Cr microchip laser. The distributions of the temperature, the refractive index and the deformations of laser crystal are determined. At the given profile of refractive index and deformations of the active element, the laser beam radius and the divergence are calculated.Item The dependence of optical properties of LiNbO3 crystal on the impurity content studied toward the advancement of volume holographic data storage technology(Видавництво Львівської політехніки, 2012) Yükselici, M. H.; Asıkoğlu, A.; Bulut, D.; Sugak, D.; Solskii, I.; Syvorotka, I.; Zhydachevskii, Ya.; Ubizskii, S.; Buryy, O.Research on holographic data storage has been carried out by using continuous wave laser at 632.8. The erasure time constants for continuous readout have been determined. Defect structures of congruent lithium niobate crystal heat-treated at high temperature were identified by optical absorption spectroscopy and the effect of defect bands modified by high temperature heat treatment on the continuous illumination life time of holograms stored in the crystal were studied.Item The effect of high temperature heat treatment on the directional homogeneity of LiNbO3 crystal studied through transmission ellipsometry(Видавництво Львівської політехніки, 2012) Asıkoğlu, A.; Yükselici, M. H.; Bulut, D.; Sugak, D.; Solskii, I.; Syvorotka, I.; Zhydachevskii, Ya.; Ubizskii, S.; Buryy, O.Pure and doped lithium niobate (LiNbO3) crystals heat treated at temperatures up to 1000oC under reduced/oxidized atmospheres were studied through normal incidence transmission ellipsometry in which a laser with a wavelength of 632.8 nm was employed. The differences in refractive indices between two orthogonal directions were calculated. Results show that the birefringence varies depending on thermal history of the samples.Item Changes in OH– absorption spectra of pure LiNbO3 during reducing/oxidizing annealing(Видавництво національного університету „Львівська політехніка”, 2009) Sugak, Yu.; Sugak, D.; Zhydachevskii, Ya.; Buryy, O.; Solskii, I.; Ubizskii, S.; Becker, K.-D.Item Investigation of the chromium ions recharging kinetics in Cr,Mg:YAG epitaxial films during high-temperature annealing(Видавництво національного університету „Львівська політехніка”, 2009) Buryy, O.; Ubizskii, S.; Syvorotka, I. I.; Becker, K.-D.